Which of the following recursive formula can be used to find the factorial of a number?

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Mr. Dubey

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📊 Design and Analysis of Algorithms

Q. Which of the following recursive formula can be used to find the factorial of a number?

(A) fact(n) = n * fact(n)
(B) fact(n) = n * fact(n+1)
(C) fact(n) = n * fact(n-1)
(D) fact(n) = n * fact(1)

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✅ Correct Answer: (C) fact(n) = n * fact(n-1)

Explanation: fact(n) = n * fact(n – 1) can be used to find the factorial of a number.

Explanation by: Mr. Dubey

fact(n) = n * fact(n – 1) can be used to find the factorial of a number.

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